1
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language

Direction : Consider the following for the items that follow :  

The roots of the quadratic equation 

a2(b2 - c2)x2 + b2(c2 - a2)x + c2(a2 - b2) = 0 are equal (a2 ≠ b2 ≠ c2).

Which one of the following is a root of the equation? 
1
$\rm \frac{b^2(c^2-a^2)}{a^2(c^2-b^2)}$
2
$\rm \frac{b^2(c^2-a^2)}{a^2(b^2-c^2)}$
3
$\rm \frac{b^2(c^2-a^2)}{2a^2(c^2-b^2)}$
4
$\rm \frac{b^2(c^2-a^2)}{2a^2(b^2-c^2)}$
2
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language
lf f(x) = [x]2 - 30[x] + 221 = 0, where [x] is the greatest integer function, then what is the sum of all integer solutions? 
1
13
2
17
3
27
4
30
3
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language
f f(x) = 9x - 8√x such that g(x) = f(x) - 1, then which one of the following is correct?
1
g(x) = 0 has no real roots 
2
g(x) = 0 has only one real root which is an integer 
3
g(x) = 0 has two real roots which are integers 
4
g(x) = 0 has only one real root which is not an integer 
4
NDA Mathematics 21 April 2024
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

If $\sqrt{2}$ and $\sqrt{3}$ are roots of the equation $a_0 + a_1 x + a_2 x^2 + a_3 x^3 + x^4 = 0$ where $a_0, a_1, a_2, a_3$ are integers, then which one of the following is correct?

A

$a_2 = a_3 = 0$

B

$a_2 = 0$ and $a_3 = -5$

C

$a_0 = 6$, $a_3 = 0$

D

$a_1 = 0$ and $a_2 = 5$

EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12